The Ancient Jameh Mosque of Esfahan is a veritable museum of Islamic architechture and still a working mosque. Within a couple of hours you can see and compare the 800 years of Islamic design. with each example near to the pinnacle of its age. The range of what to visit inside the Jameh Mosque of Isfahan is quite stunning; from the geometric elegance of the seljuks time, through to the mongol period and on to the refinements of the more baroque Safavid style. At more than 20,000sq metes, the Jameh Mosque of Isfahan it is not only an Esfahan Tourist Attractions But, the biggest mosque in Iran.